A piece of nucleic acid used to find a gene by forming a hybrid with it, is called as
A
Vector
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B
Probe
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C
Retrovirus
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D
Restriction sequence
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Solution
The correct option is B Probe Nucleic acid hybridization is a fundamental tool in molecular genetics which takes advantage of the ability of individual single-stranded nucleic acid molecules to form double-stranded molecules (to hybridize to each other). Standard nucleic acid hybridization assays involve using a labelled nucleic acid probe to identify related DNA or RNA molecules (ones with a significantly high degree of sequence similarity) within a complex mixture of unlabelled nucleic acid molecules, the target nucleic acid.